David, Abigail, and Grace were doing a science experiment. They came across a mineral that smelled like rotten eggs. Which mineral were they likely handling?

When we tested minerals in class, we used a nail, a penny, and our fingernail to test the ___________________ of the mineral

The _______________________ of a mineral can be metallic or nonmetallic.

When testing the ________________________of a mineral, we can use the white or black plate and look at the color of the powder the mineral left behind.

The scale that measures the hardness of a mineral

Mason and Arjun were on a field trip to a mine. They found a shiny mineral and Mason thought it was gold. But Arjun, who had studied minerals, told him it was actually known as "fools gold". What is the actual name of this mineral?

Grace, Abigail, and Sammy are in a science class. They found a fluorite mineral and have a penny. They are curious to know if the penny can scratch the fluorite. What do you think?